| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ignite.configuration; |
| |
| /** |
| * Interface for the configuration of the query engine. |
| */ |
| public interface QueryEngineConfiguration { |
| /** |
| * Sets whether this query engine should be used by default. |
| * <p> |
| * There can be only one query engine configuration with the default flag. |
| * <p> |
| * If there is no configuration with the default flag, the query engine provided by the ignite-indexing module |
| * will be used by default (if configured). If there is no configuration for the ignite-indexing module engine |
| * exists, the first engine from the query engines configuration will be used. |
| * |
| * @param isDflt {@code True} if this query engine should be used by default. |
| * @return {@code this} for chaining. |
| */ |
| public QueryEngineConfiguration setDefault(boolean isDflt); |
| |
| /** |
| * Is this query engine should be used by default. |
| * |
| * @return {@code True} if this query engine is default. |
| */ |
| public boolean isDefault(); |
| } |